(Medford, OR) -- Removal is complete on all four of the lower Klamath River dams. The last of the structures were removed this week. The free-flowing rivers will allow fish to get past the locations of the former dams. Restoration work will continue for several years on the 22-hundred acres that were covered with water. They'll be seeding the area with native vegetation in an effort to keep out weeds and stabilize the ground.